JP4262719B2 - Traveling device and power limiting mechanism - Google Patents

Traveling device and power limiting mechanism Download PDF

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JP4262719B2
JP4262719B2 JP2005512105A JP2005512105A JP4262719B2 JP 4262719 B2 JP4262719 B2 JP 4262719B2 JP 2005512105 A JP2005512105 A JP 2005512105A JP 2005512105 A JP2005512105 A JP 2005512105A JP 4262719 B2 JP4262719 B2 JP 4262719B2
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rotor
axle
wheel
meshing
pair
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JPWO2005010389A1 (en
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和幸 佐伯
良治 林
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Konami Digital Entertainment Co Ltd
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    • A—HUMAN NECESSITIES
    • A63—SPORTS; GAMES; AMUSEMENTS
    • A63H—TOYS, e.g. TOPS, DOLLS, HOOPS OR BUILDING BLOCKS
    • A63H17/00—Toy vehicles, e.g. with self-drive; ; Cranes, winches or the like; Accessories therefor
    • A63H17/26—Details; Accessories
    • A63H17/264—Coupling mechanisms
    • A—HUMAN NECESSITIES
    • A63—SPORTS; GAMES; AMUSEMENTS
    • A63H—TOYS, e.g. TOPS, DOLLS, HOOPS OR BUILDING BLOCKS
    • A63H17/00—Toy vehicles, e.g. with self-drive; ; Cranes, winches or the like; Accessories therefor
    • A63H17/26—Details; Accessories
    • A63H17/262—Chassis; Wheel mountings; Wheels; Axles; Suspensions; Fitting body portions to chassis
    • A—HUMAN NECESSITIES
    • A63—SPORTS; GAMES; AMUSEMENTS
    • A63H—TOYS, e.g. TOPS, DOLLS, HOOPS OR BUILDING BLOCKS
    • A63H17/00—Toy vehicles, e.g. with self-drive; ; Cranes, winches or the like; Accessories therefor
    • A63H17/26—Details; Accessories
    • A63H17/36—Steering-mechanisms for toy vehicles
    • A—HUMAN NECESSITIES
    • A63—SPORTS; GAMES; AMUSEMENTS
    • A63H—TOYS, e.g. TOPS, DOLLS, HOOPS OR BUILDING BLOCKS
    • A63H17/00—Toy vehicles, e.g. with self-drive; ; Cranes, winches or the like; Accessories therefor
    • A63H17/26—Details; Accessories
    • A63H17/42—Automatic stopping or braking arrangements
    • A—HUMAN NECESSITIES
    • A63—SPORTS; GAMES; AMUSEMENTS
    • A63H—TOYS, e.g. TOPS, DOLLS, HOOPS OR BUILDING BLOCKS
    • A63H31/00—Gearing for toys
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
    • F16D43/00—Automatic clutches
    • F16D43/02—Automatic clutches actuated entirely mechanically
    • F16D43/20—Automatic clutches actuated entirely mechanically controlled by torque, e.g. overload-release clutches, slip-clutches with means by which torque varies the clutching pressure
    • F16D43/202—Automatic clutches actuated entirely mechanically controlled by torque, e.g. overload-release clutches, slip-clutches with means by which torque varies the clutching pressure of the ratchet type
    • F16D43/2028—Automatic clutches actuated entirely mechanically controlled by torque, e.g. overload-release clutches, slip-clutches with means by which torque varies the clutching pressure of the ratchet type with at least one part moving radially between engagement and disengagement
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
    • F16D7/00—Slip couplings, e.g. slipping on overload, for absorbing shock
    • F16D7/04—Slip couplings, e.g. slipping on overload, for absorbing shock of the ratchet type
    • F16D7/048—Slip couplings, e.g. slipping on overload, for absorbing shock of the ratchet type with parts moving radially between engagement and disengagement

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Toys (AREA)
  • Transmission Devices (AREA)

Description

本発明は、模型等に使用される走行装置及び動力制限機構に関する。   The present invention relates to a traveling device and a power limiting mechanism used for a model or the like.

動力源からウォームやウォームホィール等の動力伝達機構を介して車輪へトルクを伝達する走行装置において、車輪に大きな外力が作用した際の動力伝達機構のギアの損傷を防止するため、車輪から動力伝達機構へ伝達されるトルクを制限する動力制限機構を設けることは従来より行われている（特許第２８３４６７８号公報参照）。   In a traveling device that transmits torque from a power source to a wheel via a power transmission mechanism such as a worm or worm wheel, the power transmission from the wheel is prevented to prevent damage to the gear of the power transmission mechanism when a large external force is applied to the wheel. Providing a power limiting mechanism that limits the torque transmitted to the mechanism has been conventionally performed (see Japanese Patent No. 2834678).

しかし、従来の動力制限機構は、動力伝達機構を構成するギア列等の途中に設けられているため、動力伝達機構の設置スペースに余裕がない場合はこれを装備することが困難となる。そこで、本発明は、動力伝達機構の設置スペースに余裕がない場合であっても、車輪側から動力伝達機構へ入力されるトルクを制限することができる走行装置、及び動力制限機構を提供することを目的とする。   However, since the conventional power limiting mechanism is provided in the middle of a gear train or the like constituting the power transmission mechanism, it is difficult to equip the power transmission mechanism when there is no room for the power transmission mechanism. Therefore, the present invention provides a traveling device and a power limiting mechanism that can limit the torque input from the wheel side to the power transmission mechanism even when the installation space of the power transmission mechanism is not sufficient. With the goal.

本発明は、以下の手段により上述した課題を解決する。   The present invention solves the above-described problems by the following means.

本発明による走行装置は、動力源からの動力を動力伝達機構を介して車軸に伝達して該車軸に接続された車輪を回転させる走行装置であって、前記車輪が当該車輪と前記車軸との間で伝達されるトルクを制限する動力制限機構を備え、前記動力制限機構は、前記車軸に取り付けられて当該車軸と一体に回転するロータと、該ロータに組み合わされるディスクホイールとを有し、前記ロータ及び前記ディスクホイールのそれぞれには、前記車輪の周方向において互いに噛合う噛合い部が設けられ、前記ロータの前記噛合い部は半径方向に変位可能であり、かつ、ばね手段により前記ディスクホイールの前記噛合い部に向かって押し付けられ、前記ディスクホイールには前記ロータを収容する収容穴が設けられ、該収容穴の周面に当該ディスクホイールの半径方向外側に凹むようにして少なくとも一対の噛合い部が設けられ、前記ロータには前記車軸に接続される車軸接続部と、前記車軸接続部から前記ロータの周方向に沿って延ばされて前記ばね手段として機能するアーム部とが設けられ、前記ロータの噛合い部は前記アーム部の先端部に当該ロータの半径方向外側に突出するように設けられ、前記ロータの前記アーム部及び前記噛合い部が、前記車軸接続部の中心を通過して半径方向に延びる仮想基準線に関して左右対称に一対設けられ、
前記一対のアーム部は、前記車軸接続部の中心に対して半径方向一方の側で前記車軸接続部に連結され、各アーム部の先端部は、前記車軸接続部の中心に対して半径方向他方の側にて前記仮想基準線を挟んで対向するように設けられているものである。 A traveling device according to the present invention is a traveling device that transmits power from a power source to an axle via a power transmission mechanism to rotate a wheel connected to the axle, and the wheel is connected to the wheel and the axle. A power limiting mechanism for limiting a torque transmitted between the rotor , the power limiting mechanism having a rotor attached to the axle and rotating integrally with the axle, and a disc wheel combined with the rotor, Each of the rotor and the disk wheel is provided with a meshing portion that meshes with each other in the circumferential direction of the wheel, and the meshing portion of the rotor is displaceable in the radial direction, and the disk wheel is moved by a spring means. The disc wheel is provided with a receiving hole for receiving the rotor, and the disc wheel is formed on the peripheral surface of the receiving hole. At least a pair of meshing portions are provided so as to be recessed outward in the radial direction of the rail, the axle connecting portion connected to the axle and extending from the axle connecting portion along the circumferential direction of the rotor. And an arm portion that functions as the spring means, and the meshing portion of the rotor is provided at the tip portion of the arm portion so as to protrude radially outward of the rotor, and the arm portion of the rotor and the arm portion A pair of meshing portions are provided symmetrically with respect to a virtual reference line extending in the radial direction through the center of the axle connection portion,
The pair of arm portions are coupled to the axle connection portion on one side in the radial direction with respect to the center of the axle connection portion, and the distal end portion of each arm portion is the other in the radial direction with respect to the center of the axle connection portion. It is provided so as to face each other with the virtual reference line interposed therebetween .

この走行装置によれば、車輪内に動力制限機構を配置しているので、動力伝達機構内に動力制限機構を別途設ける必要がない。従って、動力伝達機構の配置スペースに余裕がなくても車輪の周囲に余裕があれば動力制限機構により車輪側からのトルクに対して動力伝達機構を保護することができる。また、動力制限機構を有しない既存の走行装置に対して車輪を交換するだけで動力制限機構を付加できる利点もある。   According to this traveling device, since the power limiting mechanism is disposed in the wheel, it is not necessary to separately provide a power limiting mechanism in the power transmission mechanism. Therefore, even if there is no allowance for the space for disposing the power transmission mechanism, the power transmission mechanism can be protected against torque from the wheel side by the power limiting mechanism if there is a margin around the wheel. In addition, there is an advantage that a power limiting mechanism can be added only by exchanging wheels with respect to an existing traveling device that does not have a power limiting mechanism.

本発明の走行装置は、左右一対の車輪をそれぞれ独立して駆動する一対の駆動源が設けられ、各駆動源と各車輪との間には各駆動源から各車輪に向かって左右に分岐するようにして動力伝達機構が配置され、各動力伝達機構から車軸を介して各車輪に動力が伝達される走行装置において、各車輪が当該車輪と前記車軸との間で伝達されるトルクを制限する動力制限機構を備え、各動力制限機構は、前記車軸に取り付けられて当該車軸と一体に回転するロータと、該ロータに組み合わされるディスクホイールとを有し、前記ロータ及び前記ディスクホイールのそれぞれには、前記車輪の周方向において互いに噛合う噛合い部が設けられ、前記ロータの前記噛合い部は半径方向に変位可能であり、かつ、ばね手段により前記ディスクホイールの前記噛合い部に向かって押し付けられ、前記ディスクホイールには前記ロータを収容する収容穴が設けられ、該収容穴の周面に当該ディスクホイールの半径方向外側に凹むようにして少なくとも一対の噛合い部が設けられ、前記ロータには前記車軸に接続される車軸接続部と、前記車軸接続部から前記ロータの周方向に沿って延ばされて前記ばね手段として機能するアーム部とが設けられ、前記ロータの噛合い部は前記アーム部の先端部に当該ロータの半径方向外側に突出するように設けられ、前記ロータの前記アーム部及び前記噛合い部が、前記車軸接続部の中心を通過して半径方向に延びる仮想基準線に関して左右対称に一対設けられ、前記一対のアーム部は、前記車軸接続部の中心に対して半径方向一方の側で前記車軸接続部に連結され、各アーム部の先端部は、前記車軸接続部の中心に対して半径方向他方の側にて前記仮想基準線を挟んで対向するように設けられているものである。 The travel device of the present invention is provided with a pair of drive sources that independently drive the pair of left and right wheels, and branches between the drive sources and the wheels from the drive sources to the wheels. Thus, in the travel device in which the power transmission mechanism is arranged and power is transmitted from each power transmission mechanism to each wheel via the axle, each wheel limits the torque transmitted between the wheel and the axle. Each of the power limiting mechanisms includes a rotor that is attached to the axle and rotates integrally with the axle, and a disc wheel that is combined with the rotor, and each of the rotor and the disc wheel includes A meshing portion that meshes with each other in the circumferential direction of the wheel, the meshing portion of the rotor is displaceable in a radial direction, and the front of the disk wheel is moved by a spring means. The disc wheel is pressed toward the engaging portion, and the disc wheel is provided with a receiving hole for receiving the rotor, and at least a pair of engaging portions are provided on the peripheral surface of the receiving hole so as to be recessed radially outward of the disc wheel. The rotor is provided with an axle connecting portion connected to the axle, and an arm portion that extends from the axle connecting portion along the circumferential direction of the rotor and functions as the spring means. The meshing portion is provided at the tip end portion of the arm portion so as to protrude outward in the radial direction of the rotor, and the arm portion and the meshing portion of the rotor pass through the center of the axle connecting portion and radially The pair of arm portions are coupled to the axle connection portion on one side in the radial direction with respect to the center of the axle connection portion. Distal ends of the arm portions are those which are provided to face each other across the virtual reference line in the radial direction the other side with respect to the center of the axle connection.

この走行装置では、左右別々の車輪を左右別の駆動源にて駆動する構成であるため、車輪毎に動力伝達機構を設ける必要があり、仮に動力伝達機構毎にさらに動力制限機構を設けるならば動力伝達機構の設置スペースが嵩張って走行装置の大型化が免れ得ない。しかしながら、車輪に動力制限機構を設けることにより動力伝達機構内には同種の制限機構を設ける必要がなくなるから、それにより動力伝達機構をコンパクトに構成でき、走行装置を十分に小型化できる。   In this traveling device, since the left and right wheels are driven by separate left and right drive sources, it is necessary to provide a power transmission mechanism for each wheel, and if a power limiting mechanism is further provided for each power transmission mechanism. The installation space for the power transmission mechanism is bulky, and an increase in the size of the traveling device cannot be avoided. However, since it is not necessary to provide the same kind of limiting mechanism in the power transmission mechanism by providing the power limiting mechanism on the wheel, the power transmission mechanism can be made compact, and the traveling device can be sufficiently downsized.

本発明の走行装置によれば、ばね手段にて一対の噛合い部の噛合いが保持されることによりロータとディスクホイールとの間でトルクが伝達される。しかしながら、ロータとディスクホイールとの間で伝達されるトルクが限度を超えて増加すると、噛合い部同士の間に働く反力がばね手段による押し付け力を超え、噛合い部が半径方向の変位してその噛合いが外れ、ロータとディスホイールとが相対的に回転するようになる。これにより、車輪と車軸との間で伝達されるトルクが制限される。 According to the traveling device of the present invention, the torque is transmitted between the rotor and the disc wheel by maintaining the meshing of the pair of meshing portions by the spring means. However, when the torque transmitted between the rotor and the disc wheel increases beyond the limit, the reaction force acting between the meshing parts exceeds the pressing force of the spring means, and the meshing part is displaced in the radial direction. As a result, the mesh is disengaged, and the rotor and diswheel rotate relatively. This limits the torque transmitted between the wheel and the axle.

また、ディスクホイール内に収容されたロータの外周と収容穴の周面との間に噛合い部を配置して動力伝達機構をコンパクトに構成し、それにより車輪の大型化を抑えることができる。さらに、前記ロータの前記アーム部及び前記噛合い部が左右対称に一対設けられた場合には、車輪の回転方向に拘わりなく等しく動力制限作用を生じさせることができる。 Further, by arranging the engagement portion between the peripheral surface of the outer peripheral and the accommodation hole of the rotor housed in the de Isukuhoiru constitute a power transmission mechanism compactly, whereby it is possible to suppress an increase in size of the wheel . Further, when a pair of the arm portion and the meshing portion of the rotor are provided symmetrically, a power limiting action can be generated equally regardless of the rotational direction of the wheel.

本発明は上述した走行装置に適用できる動力制限機構としても把握することができる。すなわち、本発明の動力制限機構は、車輪内に設けられて該車輪と車軸との間で伝達されるトルクを制限する動力制限機構であって、前記車軸に固定されて当該車軸と一体に回転するロータと、該ロータに組み合わされるディスクホイールとを有し、前記ロータ及び前記ディスクホイールのそれぞれには、前記車輪の周方向において互いに噛合う噛合い部が設けられ、前記ロータの前記噛合い部は半径方向に変位可能であり、かつ、ばね手段により前記ディスクホイールの前記噛合い部に向かって押し付けられ、前記ディスクホイールには前記ロータを収容する収容穴が設けられ、該収容穴の周面に当該ディスクホイールの半径方向外側に凹むようにして少なくとも一対の噛合い部が設けられ、前記ロータには前記車軸に接続される車軸接続部と、前記車軸接続部から前記ロータの周方向に沿って延ばされて前記ばね手段として機能するアーム部とが設けられ、前記ロータの噛合い部は前記アーム部の先端部に当該ロータの半径方向外側に突出するように設けられ、前記ロータの前記アーム部及び前記噛合い部が、前記車軸接続部の中心を通過して半径方向に延びる仮想基準線に関して左右対称に一対設けられ、前記一対のアーム部は、前記車軸接続部の中心に対して半径方向一方の側で前記車軸接続部に連結され、各アーム部の先端部は、前記車軸接続部の中心に対して半径方向他方の側にて前記仮想基準線を挟んで対向するように設けられているものである。 The present invention can also be understood as a power limiting mechanism that can be applied to the above-described traveling device. That is, the power limiting mechanism of the present invention is a power limiting mechanism that is provided in a wheel and limits the torque transmitted between the wheel and the axle, and is fixed to the axle and rotates integrally with the axle. Each of the rotor and the disc wheel is provided with a meshing portion that meshes with each other in the circumferential direction of the wheel, and the meshing portion of the rotor. Is displaceable in the radial direction and is pressed toward the meshing portion of the disc wheel by a spring means, and the disc wheel is provided with a receiving hole for receiving the rotor, and the peripheral surface of the receiving hole At least a pair of meshing portions are provided so as to be recessed outward in the radial direction of the disc wheel, and the rotor is connected to the axle. And an arm portion extending from the axle connecting portion along the circumferential direction of the rotor and functioning as the spring means, and the meshing portion of the rotor is provided at the tip of the arm portion at the radius of the rotor. The arm portion and the meshing portion of the rotor are provided so as to protrude outward in the direction, and are provided in a pair symmetrically with respect to a virtual reference line that passes through the center of the axle connecting portion and extends in the radial direction. The arm portion is coupled to the axle connection portion on one side in the radial direction with respect to the center of the axle connection portion, and the distal end portion of each arm portion is on the other side in the radial direction with respect to the center of the axle connection portion. Are provided so as to face each other across the virtual reference line .

以上のように、本発明によれば、車軸とディスクホイールとの間で伝達されるトルクを制限する動力制限機構を車輪に設けることにより、動力伝達機構内における動力制限機構の設置を不要とすることができるので、動力伝達機構の設置スペースに余裕がない場合であっても、車輪側から動力伝達機構へ入力されるトルクを制限することができる。   As described above, according to the present invention, the power limiting mechanism for limiting the torque transmitted between the axle and the disc wheel is provided on the wheel, so that the installation of the power limiting mechanism in the power transmission mechanism becomes unnecessary. Therefore, even if there is no room for installing the power transmission mechanism, the torque input from the wheel side to the power transmission mechanism can be limited.

第１図は、本発明を実施するための一形態において使用される走行装置が組み込まれた模型Ｍの内部構造を示している。模型ＭはシャーシＣと、そのシャーシＣに搭載される走行装置１と、シャーシＣに被せられるカバー２とを備えている。カバー２はキャラクタ、動物等を模しており、第１図の矢印Ｆ方向が模型Ｍの前方に対応する。   FIG. 1 shows the internal structure of a model M incorporating a traveling device used in one embodiment for carrying out the present invention. The model M includes a chassis C, a traveling device 1 mounted on the chassis C, and a cover 2 that covers the chassis C. The cover 2 simulates a character, an animal, etc., and the arrow F direction in FIG.

走行装置１は、動力源としての左右一対のモータ３Ｌ、３Ｒと、それらのモータ３Ｌ、３Ｒからの動力を個別に伝達するための動力伝達機構４Ｌ、４Ｒと、各動力伝達機構４Ｌ、４Ｒによって伝達された動力によって回転駆動される車輪５Ｌ、５Ｒとを備えている。第１図に示すように、モータ３Ｌ及びモータ３Ｒは左右方向に関して互いに並べられた状態でシャーシＣの上部に取り付けられている。また、動力伝達機構４Ｌ、４Ｒは左右対称の構成であり、車輪５Ｌ、５Ｒについても同様に左右対称である。以下、これらを特に区別する必要がないときは添え字Ｌ、Ｒを省略して示すことがある。   The traveling device 1 includes a pair of left and right motors 3L and 3R as power sources, power transmission mechanisms 4L and 4R for individually transmitting power from the motors 3L and 3R, and power transmission mechanisms 4L and 4R. Wheels 5L and 5R that are rotationally driven by the transmitted power are provided. As shown in FIG. 1, the motor 3L and the motor 3R are attached to the upper portion of the chassis C in a state where they are arranged in the left-right direction. Further, the power transmission mechanisms 4L and 4R have a bilaterally symmetric configuration, and the wheels 5L and 5R are similarly bilaterally symmetric. Hereinafter, when there is no need to distinguish between them, the subscripts L and R may be omitted.

第２図は動力伝達機構４Ｌ、４Ｒの詳細を示している。これらの動力伝達機構４Ｌ、４Ｒは、互いに隣り合わせて並べられた一対のモータ３Ｌ、３ＲからシャーシＣの前部外側に配置された一対の車輪５Ｌ、５Ｒに向かって左右に徐々に分岐するようにギア列を設けることによって構成されている。各動力伝達機構４を構成するギア列は、モータ３の出力軸（不図示）に接続されるウォーム４ａと、ウォーム４ａと噛み合うウォームホイール４ｂと、ウォームホイール４ｂと同軸かつ一体回転可能な第１ピニオン４ｃと、第１ピニオン４ｃと噛み合う中間ギア４ｄと、中間ギア４ｄと同軸かつ一体回転可能な第２ピニオン４ｅと、第２ピニオン４ｅに噛み合うファイナルギア４ｆとを備えている。   FIG. 2 shows details of the power transmission mechanisms 4L and 4R. These power transmission mechanisms 4L and 4R gradually branch from side to side toward a pair of wheels 5L and 5R arranged outside the front portion of the chassis C from a pair of motors 3L and 3R arranged side by side. It is configured by providing a gear train. The gear train constituting each power transmission mechanism 4 includes a worm 4a connected to an output shaft (not shown) of the motor 3, a worm wheel 4b meshing with the worm 4a, and a first coaxially rotatable with the worm wheel 4b. A pinion 4c, an intermediate gear 4d that meshes with the first pinion 4c, a second pinion 4e that is coaxial with the intermediate gear 4d and can rotate integrally, and a final gear 4f that meshes with the second pinion 4e are provided.

左右のウォームホイール４ｂ及び第１ピニオン４ｃは共通のギア軸６に回転自在に支持され、左右独立して回転可能である。また、左右の中間ギア４ｄ及び第２ピニオン４ｅは共有のギア軸７に回転自在に支持され、左右独立して回転可能である。ギア軸６、７はシャーシＣに回転自在に支持されている。左右のファイナルギア４ｆはそれぞれ別々の車軸８と接続されている（第２図では左側の車軸のみが見えている）。各車軸８もシャーシＣに回転自在に支持され、それぞれの先端に車輪５が取り付けられる。   The left and right worm wheels 4b and the first pinion 4c are rotatably supported on a common gear shaft 6 and can be rotated independently on the left and right. The left and right intermediate gears 4d and the second pinion 4e are rotatably supported by the common gear shaft 7 and can be rotated independently on the left and right. The gear shafts 6 and 7 are rotatably supported by the chassis C. The left and right final gears 4f are respectively connected to separate axles 8 (only the left axle is visible in FIG. 2). Each axle 8 is also rotatably supported by the chassis C, and a wheel 5 is attached to each tip.

各車輪５は、ロータ９と、ディスクホイール１０と、そのディスクホイール１０に装着されるキャップ１１とを備えている。ロータ９は車軸８に取り付けられることにより車軸８と一体に回転する。一方、ディスクホイール１０はロータ９の外側に組み合わされる。   Each wheel 5 includes a rotor 9, a disk wheel 10, and a cap 11 attached to the disk wheel 10. The rotor 9 rotates integrally with the axle 8 by being attached to the axle 8. On the other hand, the disc wheel 10 is combined outside the rotor 9.

第３Ａ図にロータ９の詳細を、第３Ｂ図にディスクホイール１０の詳細をそれぞれ示す。ロータ９は、その中心部に配置される車軸接続部１２と、車軸接続部１２からスリットＳを挟んで周方向に延ばされた２本のアーム部１３、１３とを備えている。車軸接続部１２の中心には車軸８が嵌合する車軸取付孔１２ａが設けられている。アーム部１３は車軸取付孔１２ａを通過して半径方向に延びる仮想基準線Ｌに関して左右対称に設けられている。各アーム部１３の先端にはロータ９の半径方向外側に突出する凸状の噛合い部１４が設けられている。   3A shows details of the rotor 9, and FIG. 3B shows details of the disc wheel 10. The rotor 9 includes an axle connecting portion 12 disposed at the center thereof, and two arm portions 13 and 13 extending from the axle connecting portion 12 in the circumferential direction with the slit S interposed therebetween. In the center of the axle connecting portion 12, an axle mounting hole 12a into which the axle 8 is fitted is provided. The arm portion 13 is provided symmetrically with respect to a virtual reference line L that passes through the axle mounting hole 12a and extends in the radial direction. At the tip of each arm portion 13, a convex meshing portion 14 protruding outward in the radial direction of the rotor 9 is provided.

一方、ディスクホイール１０にはロータ９を収容するための収容穴１５が設けられている。収容穴１５の周面１５ａは略正八角形状に形成されており、その各角にはロータ９の噛合い部１４、１４と噛み合うための半径方向外側に凹んだ噛合い部１７が形成されている。ディスクホイール１０の中心部には車軸８やロータ９の車軸接続部１２を通過させる貫通孔１８が設けられている。   On the other hand, the disc wheel 10 is provided with a receiving hole 15 for receiving the rotor 9. The circumferential surface 15a of the receiving hole 15 is formed in a substantially regular octagonal shape, and meshing portions 17 recessed outward in the radial direction for meshing with the meshing portions 14 and 14 of the rotor 9 are formed at each corner. Yes. A through hole 18 through which the axle 8 and the axle connecting portion 12 of the rotor 9 pass is provided at the center of the disc wheel 10.

図４は、ロータ９をディスクホイール１０の収容穴１５に収容して噛合い部１４、１７を互いに噛み合わせた状態を示している。図示の状態において、ロータ９のアーム部１３は噛合い部１４を相手側の噛合い部１７に向かって押し付けるばね手段として作用している。このアーム部１３のばね力により噛合い部１４、１７が互いに噛み合った状態に保持される。噛合い部１４、１７は車輪５の半径方向のみならず周方向にも噛み合っているため、ロータ９から噛合い部１４、１７を経てディスクホイール１０にトルクが伝達可能となる。従って、モータ３により車輪５を駆動して模型Ｍを走行させることができる。   FIG. 4 shows a state in which the rotor 9 is received in the receiving hole 15 of the disc wheel 10 and the engaging portions 14 and 17 are engaged with each other. In the state shown in the figure, the arm portion 13 of the rotor 9 acts as a spring means for pressing the meshing portion 14 toward the mating meshing portion 17. The meshing portions 14 and 17 are held in mesh with each other by the spring force of the arm portion 13. Since the meshing portions 14 and 17 are meshed not only in the radial direction of the wheel 5 but also in the circumferential direction, torque can be transmitted from the rotor 9 to the disk wheel 10 via the meshing portions 14 and 17. Therefore, it is possible to drive the model M by driving the wheels 5 by the motor 3.

一方、模型Ｍがユーザの手で押される等して車輪５に過剰なトルクが加えられた場合、そのトルクが噛合い部１４、１７の間に作用して噛合い部１４を噛合い部１７から半径方向中心側に押し退けるような反力が作用する。その反力がアーム部１３によるばね力に打ち勝つと噛合い部１４、１７の噛合いが外れ、ディスクホイール１０が回転してもその回転はロータ９に大して伝達不能となる。これにより、ロータ９から車軸８を経て動力伝達機構４に伝達されるトルクが制限される。従って、動力伝達機構４に設けられた各ギア４ａ〜４ｆの損傷を防ぐことができる。   On the other hand, when the model M is pushed by the user's hand and excessive torque is applied to the wheel 5, the torque acts between the meshing portions 14, 17 to cause the meshing portion 14 to mesh with the meshing portion 17. Reaction force that pushes away from the center in the radial direction acts. When the reaction force overcomes the spring force by the arm portion 13, the meshing portions 14 and 17 are disengaged, and even when the disk wheel 10 rotates, the rotation is largely transmitted to the rotor 9 and cannot be transmitted. Thereby, the torque transmitted from the rotor 9 to the power transmission mechanism 4 via the axle 8 is limited. Therefore, damage to each gear 4a-4f provided in the power transmission mechanism 4 can be prevented.

このように、本形態の走行装置１では、ロータ９とディスクホイール１０とによって動力制限機構が構成されている。なお、噛合い部１４、１７の間で伝達できるトルクの大きさは噛合い部１４、１７の形状、大きさ、及びアーム部１３によるばね力に応じて適宜に変化させることができる。ロータ９とディスクホイール１０との間で伝達可能なトルクの最大値は、動力伝達機構４の各ギア４ａ〜４ｆに許容限度を超える力が作用しない範囲に制限する。一方、ロータ９とディスクホイール１０との間で伝達可能なトルクの最小値は、モータ３から動力伝達機構４及び車軸８を介して車輪５に入力されるトルクがロータ９からディスクホイール１０へ確実に入力される範囲に設定する。   Thus, in the traveling device 1 of this embodiment, the rotor 9 and the disc wheel 10 constitute a power limiting mechanism. The magnitude of the torque that can be transmitted between the meshing portions 14 and 17 can be appropriately changed according to the shape and size of the meshing portions 14 and 17 and the spring force of the arm portion 13. The maximum value of torque that can be transmitted between the rotor 9 and the disc wheel 10 is limited to a range in which a force exceeding an allowable limit does not act on the gears 4 a to 4 f of the power transmission mechanism 4. On the other hand, the minimum torque that can be transmitted between the rotor 9 and the disc wheel 10 is such that the torque input from the motor 3 to the wheel 5 via the power transmission mechanism 4 and the axle 8 is reliably transmitted from the rotor 9 to the disc wheel 10. Set to the range entered in.

本発明は、上述した形態に限らず様々の形態にて実施可能である。例えば、ディスクホイール１０の噛合い部１７は略八角形の収容穴１５の各角に設ける必要はなく、８以上でも以下でもよい。収容穴１５は円形であってもよい。 The present invention is not limited to the above-described form, and can be implemented in various forms. For example, the engagement portion 17 of the disc wheel 10 does not need to be provided at each corner of the substantially octagonal accommodation hole 15, and may be 8 or more or less. The receiving hole 15 may be circular .

以上では模型Ｍの走行装置に本発明を適用した例を示したが、本発明の走行装置は模型に限らず、各種の走行装置に適用することができる。   Although the example which applied this invention to the traveling apparatus of the model M was shown above, the traveling apparatus of this invention can be applied not only to a model but to various traveling apparatuses.

本発明の走行装置の一形態を示す斜視図。It is shown to a perspective view of an embodiment of a traveling device of the present invention. 第１図の走行装置における動力伝達機構の構成を示す斜視図。The perspective view which shows the structure of the power transmission mechanism in the traveling apparatus of FIG. 車輪内に組み込まれる部品の拡大図であって、ロータの拡大図。It is an enlarged view of the components integrated in a wheel, Comprising: The enlarged view of a rotor. 車輪内に組み込まれる部品の拡大図であって、ディスクホイールの拡大図。FIG. 3 is an enlarged view of a part incorporated in a wheel, and an enlarged view of a disc wheel. 第３Ａ図及び第３Ｂ図に示すロータ及びディスクホイールを組み合わせた状態を示す図。The figure which shows the state which combined the rotor and disc wheel which are shown to FIG. 3A and 3B.

Claims (3)

動力源からの動力を動力伝達機構を介して車軸に伝達して該車軸に接続された車輪を回転させる走行装置において、
前記車輪が当該車輪と前記車軸との間で伝達されるトルクを制限する動力制限機構を備え、
前記動力制限機構は、前記車軸に取り付けられて当該車軸と一体に回転するロータと、該ロータに組み合わされるディスクホイールとを有し、
前記ロータ及び前記ディスクホイールのそれぞれには、前記車輪の周方向において互いに噛合う噛合い部が設けられ、
前記ロータの前記噛合い部は半径方向に変位可能であり、かつ、ばね手段により前記ディスクホイールの前記噛合い部に向かって押し付けられ、
前記ディスクホイールには前記ロータを収容する収容穴が設けられ、該収容穴の周面に当該ディスクホイールの半径方向外側に凹むようにして少なくとも一対の噛合い部が設けられ、
前記ロータには前記車軸に接続される車軸接続部と、前記車軸接続部から前記ロータの周方向に沿って延ばされて前記ばね手段として機能するアーム部とが設けられ、
前記ロータの噛合い部は前記アーム部の先端部に当該ロータの半径方向外側に突出するように設けられ、
前記ロータの前記アーム部及び前記噛合い部が、前記車軸接続部の中心を通過して半径方向に延びる仮想基準線に関して左右対称に一対設けられ、
前記一対のアーム部は、前記車軸接続部の中心に対して半径方向一方の側で前記車軸接続部に連結され、各アーム部の先端部は、前記車軸接続部の中心に対して半径方向他方の側にて前記仮想基準線を挟んで対向するように設けられている走行装置。 In a traveling device that transmits power from a power source to an axle via a power transmission mechanism and rotates a wheel connected to the axle,
A power limiting mechanism for limiting a torque transmitted by the wheel between the wheel and the axle;
The power limiting mechanism includes a rotor that is attached to the axle and rotates integrally with the axle, and a disc wheel that is combined with the rotor.
Each of the rotor and the disc wheel is provided with a meshing portion that meshes with each other in the circumferential direction of the wheel,
The meshing portion of the rotor is radially displaceable and pressed against the meshing portion of the disc wheel by spring means;
The disc wheel is provided with a receiving hole for receiving the rotor, and at least a pair of meshing portions are provided on the peripheral surface of the receiving hole so as to be recessed radially outward of the disc wheel,
The rotor is provided with an axle connecting portion connected to the axle, and an arm portion that extends from the axle connecting portion along the circumferential direction of the rotor and functions as the spring means.
The meshing portion of the rotor is provided at the tip of the arm portion so as to protrude radially outward of the rotor,
A pair of the arm part and the meshing part of the rotor are provided symmetrically with respect to a virtual reference line extending in the radial direction through the center of the axle connecting part ,
The pair of arm portions are coupled to the axle connection portion on one side in the radial direction with respect to the center of the axle connection portion, and the distal end portion of each arm portion is the other in the radial direction with respect to the center of the axle connection portion. Tei Ru run line device wherein provided so as to face each other across the imaginary reference line on the side of. 左右一対の車輪をそれぞれ独立して駆動する一対の駆動源が設けられ、各駆動源と各車輪との間には各駆動源から各車輪に向かって左右に分岐するように動力伝達機構が配置され、各動力伝達機構から車軸を介して各車輪に動力が伝達される走行装置において、
各車輪が当該車輪と前記車軸との間で伝達されるトルクを制限する動力制限機構を備え、
各動力制限機構は、前記車軸に取り付けられて当該車軸と一体に回転するロータと、該ロータに組み合わされるディスクホイールとを有し、
前記ロータ及び前記ディスクホイールのそれぞれには、前記車輪の周方向において互いに噛合う噛合い部が設けられ、
前記ロータの前記噛合い部は半径方向に変位可能であり、かつ、ばね手段により前記ディスクホイールの前記噛合い部に向かって押し付けられ、
前記ディスクホイールには前記ロータを収容する収容穴が設けられ、該収容穴の周面に当該ディスクホイールの半径方向外側に凹むようにして少なくとも一対の噛合い部が設けられ、
前記ロータには前記車軸に接続される車軸接続部と、前記車軸接続部から前記ロータの周方向に沿って延ばされて前記ばね手段として機能するアーム部とが設けられ、
前記ロータの噛合い部は前記アーム部の先端部に当該ロータの半径方向外側に突出するように設けられ、
前記ロータの前記アーム部及び前記噛合い部が、前記車軸接続部の中心を通過して半径方向に延びる仮想基準線に関して左右対称に一対設けられ、
前記一対のアーム部は、前記車軸接続部の中心に対して半径方向一方の側で前記車軸接続部に連結され、各アーム部の先端部は、前記車軸接続部の中心に対して半径方向他方の側にて前記仮想基準線を挟んで対向するように設けられている走行装置。 A pair of drive sources for independently driving a pair of left and right wheels are provided, and a power transmission mechanism is arranged between each drive source and each wheel so as to branch left and right from each drive source toward each wheel. In a traveling device in which power is transmitted from each power transmission mechanism to each wheel via an axle,
Each wheel has a power limiting mechanism that limits the torque transmitted between the wheel and the axle,
Each power limiting mechanism has a rotor attached to the axle and rotating integrally with the axle, and a disc wheel combined with the rotor,
Each of the rotor and the disc wheel is provided with a meshing portion that meshes with each other in the circumferential direction of the wheel,
The meshing portion of the rotor is radially displaceable and pressed against the meshing portion of the disc wheel by spring means;
The disc wheel is provided with a receiving hole for receiving the rotor, and at least a pair of meshing portions are provided on the peripheral surface of the receiving hole so as to be recessed radially outward of the disc wheel,
The rotor is provided with an axle connecting portion connected to the axle, and an arm portion that extends from the axle connecting portion along the circumferential direction of the rotor and functions as the spring means.
The meshing portion of the rotor is provided at the tip of the arm portion so as to protrude radially outward of the rotor,
A pair of the arm part and the meshing part of the rotor are provided symmetrically with respect to a virtual reference line extending in the radial direction through the center of the axle connecting part ,
The pair of arm portions are coupled to the axle connection portion on one side in the radial direction with respect to the center of the axle connection portion, and the distal end portion of each arm portion is the other in the radial direction with respect to the center of the axle connection portion. Tei Ru run line device wherein provided so as to face each other across the imaginary reference line on the side of. 車輪内に設けられて該車輪と車軸との間で伝達されるトルクを制限する動力制限機構であって、
前記車軸に固定されて当該車軸と一体に回転するロータと、該ロータに組み合わされる ディスクホイールとを有し、
前記ロータ及び前記ディスクホイールのそれぞれには、前記車輪の周方向において互いに噛合う噛合い部が設けられ、
前記ロータの前記噛合い部は半径方向に変位可能であり、かつ、ばね手段により前記ディスクホイールの前記噛合い部に向かって押し付けられ、
前記ディスクホイールには前記ロータを収容する収容穴が設けられ、該収容穴の周面に当該ディスクホイールの半径方向外側に凹むようにして少なくとも一対の噛合い部が設けられ、
前記ロータには前記車軸に接続される車軸接続部と、前記車軸接続部から前記ロータの周方向に沿って延ばされて前記ばね手段として機能するアーム部とが設けられ、
前記ロータの噛合い部は前記アーム部の先端部に当該ロータの半径方向外側に突出するように設けられ、
前記ロータの前記アーム部及び前記噛合い部が、前記車軸接続部の中心を通過して半径方向に延びる仮想基準線に関して左右対称に一対設けられ、
前記一対のアーム部は、前記車軸接続部の中心に対して半径方向一方の側で前記車軸接続部に連結され、各アーム部の先端部は、前記車軸接続部の中心に対して半径方向他方の側にて前記仮想基準線を挟んで対向するように設けられている動力制限機構。 A power limiting mechanism provided in a wheel for limiting a torque transmitted between the wheel and an axle;
A rotor fixed to the axle and rotating integrally with the axle; and a disc wheel combined with the rotor ;
Each of the rotor and the disc wheel is provided with a meshing portion that meshes with each other in the circumferential direction of the wheel,
The meshing portion of the rotor is radially displaceable and pressed against the meshing portion of the disc wheel by spring means;
The disc wheel is provided with a receiving hole for receiving the rotor, and at least a pair of meshing portions are provided on the peripheral surface of the receiving hole so as to be recessed radially outward of the disc wheel,
The rotor is provided with an axle connecting portion connected to the axle, and an arm portion that extends from the axle connecting portion along the circumferential direction of the rotor and functions as the spring means.
The meshing portion of the rotor is provided at the tip of the arm portion so as to protrude radially outward of the rotor,
A pair of the arm part and the meshing part of the rotor are provided symmetrically with respect to a virtual reference line extending in the radial direction through the center of the axle connecting part ,
The pair of arm portions are coupled to the axle connection portion on one side in the radial direction with respect to the center of the axle connection portion, and the distal end portion of each arm portion is the other in the radial direction with respect to the center of the axle connection portion. Tei Ru dynamic force limiting mechanism wherein provided so as to face each other across the imaginary reference line on the side of.
JP2005512105A 2003-07-28 2004-07-26 Traveling device and power limiting mechanism Active JP4262719B2 (en)

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JPWO2005010389A1 (en) 2006-09-07
EP1650453A1 (en) 2006-04-26
US20060025224A1 (en) 2006-02-02
WO2005010389A1 (en) 2005-02-03

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